Necessary catalyst Synonyms

Definitions for Necessary


  • (adjective) forcing one's compliance or participation by or as if by law
  • (adjective) impossible to avoid or evade
  • (adjective) impossible to do without

Definitions for Catalyst


  • (noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
  • (noun) something that causes an important event to happen